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ppmspread - displace a portable pixmap's pixels by a random amount
ppmspread
amount [ppmfile]
Reads a portable pixmap as input. Moves every
pixel around a bit relative to its original position. amount determines
by how many pixels a pixel is to be moved around at most.
Pictures processed
with this filter will seem to be somewhat dissolved or unfocussed (although
they appear more coarse than images processed by something like pnmconvol
).
ppm(5)
, pnmconvol(1)
Copyright (C) 1993 by Frank Neumann
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